Answer:
pint
Explanation:
Answer.............
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
PLZ HELP I WILL GIVE BRAINLY AND POINTS
Put the steps of the scientific method into the correct order.
Devise an experiment to prove or disprove.
State conclusions.
Conduct a literature search.
Define the problem.
Propose a hypothesis.
Answer:
1. Define the problem
2. Conduct a literature search
3. Propose a hypothesis
4. Devise an experiment to prove or disprove
5. State conclusions
Explanation: In order to begin an experiment, you must first define a problem or question that you will be answering. Then you must research the problem in order to form a hypothesis, or an educated guess. Then you should devise and execute an experiment to answer your question. The conclusions that you draw will either prove or disprove your hypothesis. Hope this helps!
Why are ions charged particles?
Answer:
An ion is a charged atom or molecule. It is charged because the number of electrons do not equal the number of protons in the atom or molecule. An atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.
Explanation:
hope it's right
How would you measure 20 grams of salt? Describe how you did this.
(this is due by tmr so someone please help!)
Answer:
I would just find a measuring cup and do it that way it's the easiest way
What was the low temperature for hurricane Katrina?
Answer: 90 degrees F
Explanation:
The passage below describes an experiment. Read the passage and then follow the instructions below.
Vijay made a batch of bread dough and divided it into two balls of equal size. He measured the sizes of the dough balls and placed one in an 80°F warming cabinet and the other in a 60°F warming cabinet. The cabinets each had 75 percent humidity. Vijay let the dough expand in the warming cabinets for two hours. Leaving the dough on the pan, he then measured the sizes of the dough balls and calculated how much the dough had expanded. Vijay repeated this process with nine more batches of bread dough, alternating which warming cabinet was set to 80°F and which was set to 60°F
Answer:
75% + 60°F + 80°F + 60.
Explanation:
Since I got it wrong, try this one.
hope this helps.
(Answer is 275).
Answer:
75 + 60 + 80 +60
Explanation:
In grade 7 you will learn how to get all templates
help
Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.
Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.
Answer:
sugar-water is a mixture not a compound.(homogeneous mixture.)
Explanation:
Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.
The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)
What is the main way viruses cause disease in the body
A. By feeding directly on your body parts
B. By using your body's cells to make new viruses
C. By absorbing nutrients from your bloodstream
D. By breaking down your body's cells for nutrients
Answer:
the answer is B
Explanation:
this is because viruses need to enter a host cell to start reproduce. they usually use your cell to create "virus making factories".
hope it helps
no problems
PLSSSSSSSS HELP MEEEEEEEEEEEEEE
Answer: The answer to your question is B,C,D.
Answer: i think A, B, D?
Explanation:
I have asked this already!!!!!
Answer:
01) Cu tting hair is a physical change. reason-1
02) Cooking can be either one, but I would choose chemical reason-3
03) Ice cream melting is a physical change reason-2
Explanation:
Do you think rayon when burnt will stick to the body like other synthetic fibers?
Ravi and Tina were working on a project based on ‘Changes around us’, for which they were observing different changes occurring in their daily life. They went to kitchen where they saw their mother was cooking food on LPG stove. Ravi said that burning of LPG in LPG stove involves chemical change. But Tina argued that both physical and chemical changes are involved in this process. According to you who is correct and why?
Note: will mark Brainliest but Please do not copy answers from the internet!
Answer: It includes both a physical and chemical change
Explanation: Because the gas is turning into fire which is physical and the gas is giving out heat which is chemical
Answer:
There is both physical and chemical change happening.
Physical change is a reversible change but chemical change is irreversible.
When the LPG burns, there is both physical and chemical change happening,
When LPG comes out of the cylinder, it is converted from liquid to gaseous state - physical changeWhen the gas burns in air - chemical changeTherefore Tina is correct in the argument.
how can I put a picture or a photo in my questions?
Answer:
click the lil button that looks like a paperclip
Explanation:
Answer:
There is a paperclip-looking symbol when you are typing. Just download it to your computer or phone and attach it
Explanation:
Methane is a gas at room temperature and pressure. Explain why this is the case.
Answer:
hope it helps ❤
Explanation:
Methane only has london dispersion forces since it is nonpolar. London dispersion force is the weakest intermolecular force, so the forces between its molecules will be weak. This leads to a low boiling point that is lower than room temperature, which makes it a gas at room temperature.
Please help, I don't get what does this means
3. Name the compound sodium makes with the following elements.
(a) Calcium carbonate:
Answer: hydrogen-carbonate.
Explanation:Because when carbon dioxide is passed in excess it leads to a formation of hydrogen-carbonate.
I hope everyone finds this helpful
If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?
How were the novae on Venus similar to the landforms in Gerya’s computer model?
Answer:
Explanation:
The model results matched the novae on Venus. This provided evidence that Gerya's idea that a thinner crust and higher surface temperature might allow melted rock to push up toward the surface, forming novae.
In a reaction, 5.3g of Sodium Carbonate reacted with 6g of ethanoic acid. The products were 2.2g of CO2, 0.9g of water and 8.2g of Sodium ethanoate. Show that these observations are in agreement with the law of conservation of mass, Sodium Carbonate + Ethanoic acid = Sodium ethanoate + Carbon dioxide + Water.
No spam please!!
SOLUTION :
Law of conservation of Mass States that "Mass is neither created, nor destroyed".
→ Like Mass of Reactants = Mass of products.
REACTANTS :
Mass of Sodium Carbonate(given) = 5.3gMass of ethanoic acid(given)= 6gThe total mass of reactants:
= 5.3 + 6
= 11.3g
•Products are :Mass of Carbon Dioxide = 2.2gMass of Water = 0.9gMass of Sodium ethanoate = 8.2gThe total mass of products is :
= 2.2 + 0.9 + 8.2
= 3.1 + 8.2
= 11.3g
Hence the, Mass of Reactants = Mass of products
∴ The given reaction is in agreement with the law of conservation.
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what is methyl orange
Answer:
orange made up from methyl
What information does the periodic table give you?
Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
ILL GIVE 30 POINTS TO THE BRAINIEST
How does a balanced chemical equation prove the Law of Conservation of matter?
Answer:
Every chemical equation follows to the law of conservation of mass, which states that matter cannot be created or destroyed. When you have an equal number of atoms of an element is present on both sides of a chemical equation, the equation is balanced therefore it is following the law of conservation of mass.
Explanation:
Answer:
A balanced chemical proves the Law of Conservation of Matter because the law stats that matter cannot be created nor destroyed. so, in every chemical reaction the amount of matter will stay the same in the product as it did in the reactant.
In other words, balanced chem equations show that mass in conserved in chemical reactions
hope this helped:)
Explanation:
Please help me por favor :'(
On this number line, zero represents sea level. Plot the following points based on the description provided by dragging and dropping the dots to the appropriate locations on the number line.
greatest common factor of 8 and 12
where does this go on the number line
Which substance will form a solution with water? (Select all that apply.)
sugar
string
sand
salt
Answer:
Salt. Sugar.
Explanation:
When you combine both salt, sugar and water you have a new solution, Salt water, Sugar water.
String won't change anything about the water, and sand.
Answer: NaCl , AgNO3 , and KNO3
Explanation:
What is an ellipse please help)
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
Use the reaction l2(s) = 12(9), AH = 62.4 kJ/mol, AS = 0.145 kJ/(mol-K), for
this question
At what temperature is the reaction at equilibrium?
A. 157 K
B. 62 K
C. 0.002 K
D. 430 K
Answer: D. 430 K
Explanation:
Using Gibbs Helmholtz equation:
\(\Delta G=\Delta H-T\Delta S\)
\(\Delta G\) = Gibbs free energy
\(\Delta H\) = enthalpy change = 62.4 kJ/mol
\(\Delta S = entropy change = 0.145 kJ/mol K
T = temperature in Kelvin
\(\Delta G\) = +ve, reaction is non spontaneous
\(\Delta G\)= -ve, reaction is spontaneous
\(\Delta G\)= 0, reaction is in equilibrium
At equilibrium : \(T\Delta S=\Delta H\)
\(T=\frac{\Delta H}{\Delta S}\)
\(T=\frac{62.4}{0.145}\)
\(T=430K\)
Thus at 430 K , the reaction is at equilibrium.
Use the reaction I2(s) ⇌ l2(g), ΔH = 62.4 kJ/mol, ΔS+ 0.145 kJ/(mol⋅K), for this question. At what temperature is the reaction at equilibrium?
430 K
Use the picture below to answer the question.
Comparing the two waves, wave B has a...
A) higher frequency.
B) greater amplitude.
C) shorter wavelength.
D) longer wavelength.
Answer: D) longer wavelength.
Explanation:
What is true about matter?
A.
Matter has mass and takes up space.
B.
Matter has mass but does not take up space.
C.
Matter takes up space but does not have mass.
D.
Matter does not have mass or take up space.
Answer:
A). mateer has mass and takes place
Answer:
Explanation: Its c
⚠️ILL MARK BRAINLIEST!⚠️
What is the speed of light? If light travels 31% slower in fiber optic line, how fast does light travel through the line?